Vermont is going to have a go at the Genuine Progress Indicator, a GDP alternative:

Estimating the GPI begins with household consumption, the major component of Gross Domestic (or State) Product (GDP), followed by twenty-four separate adjustments including:

• Additions for benefits not included in GDP, for example the values of volunteer and household work, and non-market benefits from the services of forests (e.g. water purification) and wetlands (e.g. buffer storm events);
• Deductions for depletion of our environmental assets, harm to human health, costs of underemployment, and loss of leisure time; and
• Adjustment for the distribution of income received by citizens, more accurately measuring the ability of the economy to provide for all.

The website explains in detail how the calculations are done.